Java 超级好用的分页工具类

package com.xh.temp.tempdemo.utils;import java.io.Serializable;
import java.util.List;/*** 分页工具类** @author xiehui1956@gmail.com on* @version 1.0.0* @date 2022/2/27*/
public class PagerUtils implements Serializable {/****/private static final long serialVersionUID = 4542617637761955078L;/*** currentPage 当前页*/private int currentPage = 1;/*** pageSize 每页大小*/private int pageSize = 100;/*** pageTotal 总页数*/private int pageTotal;/*** recordTotal 总条数*/private int recordTotal = 0;/*** previousPage 前一页*/private int previousPage;/*** nextPage 下一页*/private int nextPage;/*** firstPage 第一页*/private int firstPage = 1;/*** lastPage 最后一页*/private int lastPage;/*** content 每页的内容*/private List content;/*** 获取起始偏移量** @return 偏移量*/public int fromIndex() {return (pageSize * (currentPage - 1));}/*** 获取结束偏移量** @return 结束偏移量*/public int toIndex() {return pageSize * currentPage > getRecordTotal() ? getRecordTotal() : (pageSize * currentPage);}// 以下set方式是需要赋值的/*** 设置当前页 
** @param currentPage* @author kangxu*/public void setCurrentPage(int currentPage) {this.currentPage = currentPage;}/*** 设置每页大小,也可以不用赋值,默认大小为10条 
** @param pageSize* @author kangxu*/public void setPageSize(int pageSize) {this.pageSize = pageSize;}/*** 设置总条数,默认为0 
** @param recordTotal* @author kangxu*/public void setRecordTotal(int recordTotal) {this.recordTotal = recordTotal;otherAttr();}/*** 设置分页内容 
** @param content* @author kangxu*/public void setContent(List content) {this.content = content;}/*** 设置其他参数** @author kangxu*/public void otherAttr() {// 总页数this.pageTotal = this.recordTotal % this.pageSize > 0 ? this.recordTotal / this.pageSize + 1 : this.recordTotal / this.pageSize;// 第一页this.firstPage = 1;// 最后一页this.lastPage = this.pageTotal;// 前一页if (this.currentPage > 1) {this.previousPage = this.currentPage - 1;} else {this.previousPage = this.firstPage;}// 下一页if (this.currentPage < this.lastPage) {this.nextPage = this.currentPage + 1;} else {this.nextPage = this.lastPage;}}// 放开私有属性public int getCurrentPage() {return currentPage;}public int getPageSize() {return pageSize;}public int getPageTotal() {return pageTotal;}public int getRecordTotal() {return recordTotal;}public int getPreviousPage() {return previousPage;}public int getNextPage() {return nextPage;}public int getFirstPage() {return firstPage;}public int getLastPage() {return lastPage;}public List getContent() {return content;}@Overridepublic String toString() {return "Pager [currentPage=" + currentPage + ", pageSize=" + pageSize+ ", pageTotal=" + pageTotal + ", recordTotal=" + recordTotal+ ", previousPage=" + previousPage + ", nextPage=" + nextPage+ ", firstPage=" + firstPage + ", lastPage=" + lastPage+ ", content=" + content + "]";}}

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